Granted Patent
Utility
US 4,156,035 · App. 05/904,157
Photocurable epoxy-acrylate compositions
Inventors:
Jung-Hsien Tsao, Arthur D. Ketley
Patented Case
View Patent ↗
Granted: May 22, 1979
Filed: May 9, 1978
Inventors
Jung-Hsien Tsao
Arthur D. Ketley
Assignee (at issue)
W. R. Grace & Co.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.